– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 pm Fri 07 Aug Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 pm Fri 07 Aug Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Fri 07 Aug Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryMostly dry. Warm (max 26°C on Fri afternoon, min 14°C on Sun night). Wind will be generally light. | Days 5–7 Weather SummaryMostly dry. Warm (max 22°C on Mon afternoon, min 13°C on Wed night). Wind will be generally light. | ||||||||||||||||
Fri 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  | |  | | | | | | | |  | |  | |
clear | some clouds | cloudy | clear | clear | clear | some clouds | clear | clear | clear | clear | clear | clear | clear | light rain | light rain | rain shwrs | |
Cloud base (m) | 6300 | 8850 | 3600 | 2150 | 650 | 800 | |||||||||||
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 0.1 | 0.4 | 0.1 |
max °C | 26 | 22 | 20 | 23 | 19 | 19 | 22 | 18 | 19 | 22 | 18 | 19 | 22 | 18 | 16 | 18 | 16 |
min °C | 26 | 17 | 18 | 23 | 15 | 16 | 21 | 14 | 16 | 21 | 14 | 16 | 21 | 15 | 15 | 17 | 13 |
chill °C | 26 | 17 | 18 | 23 | 15 | 16 | 21 | 14 | 16 | 21 | 14 | 16 | 21 | 15 | 15 | 17 | 13 |
Freezing level m | 4350 | 4200 | 4050 | 3900 | 3950 | 3950 | 3850 | 3800 | 3850 | 3900 | 3900 | 3800 | 3750 | 3850 | 3750 | 3650 | 3700 |
 | — | — | 5:50 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:56 | — | — |
 | — | 8:37 | — | — | 8:35 | — | — | 8:32 | — | — | 8:31 | — | — | 8:30 | — | — | 8:28 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Mostly dry. Warm (max 26°C on Fri afternoon, min 14°C on Sun night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Warm (max 22°C on Mon afternoon, min 13°C on Wed night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.